This Part of this Schedule, except paragraphs 6 and 7 shall be deemed to have had effect as from 1st may 1974 ; and paragraphs 6(1) and (7) shall have effect as from 1st August 1974.

This Part of this Schedule shall not extend to Northern Ireland.

The Commissioners may make such arrangements operating for such periods as they think proper for the charge of duty on any instrument giving effect to a stock exchange transaction (as defined in section 4 of the M1Stock Transfer Act 1963) in respect of which settlement was due before 2st May 1974 to be the same as if this Act had not been passed, and any instrument stamped in accordance with such arrangements shall be deemed to be duly stamped for all purposes.